Quart. Journ. Geol. Soc Vol. LX, Pl. XVII. 



1. x 25 



3. x 124 



4. x 12* 



X'W&l 



ft 



r 







£ J - 



5. xi2A 



6. x 12* 





IGNEOUS ROCKS from the BRISTOL DISTRICT. 



Photo?nicro, H. A.-B. 



BetHrose. Collo. 



